Numbers, HCF & LCM
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What you'll learn
Every whole number breaks down into prime building blocks. Prime factorisation is the key that unlocks the HCF and the LCM of two numbers.
- Factors and multiples
- Prime numbers
- Index notation for repeated factors
- Prime factorisation
- HCF - the highest common factor
- LCM - the lowest common multiple
- HCF vs LCM - do not mix them up